CN202108491U - Gas well separate stratum fracturing and separate stratum testing integrated process pipe column - Google Patents
Gas well separate stratum fracturing and separate stratum testing integrated process pipe column Download PDFInfo
- Publication number
- CN202108491U CN202108491U CN2011201516866U CN201120151686U CN202108491U CN 202108491 U CN202108491 U CN 202108491U CN 2011201516866 U CN2011201516866 U CN 2011201516866U CN 201120151686 U CN201120151686 U CN 201120151686U CN 202108491 U CN202108491 U CN 202108491U
- Authority
- CN
- China
- Prior art keywords
- separate stratum
- stratum
- hydraulic anchor
- packer
- reservoir
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a gas well separate stratum fracturing and separate stratum testing integrated process pipe column, which is applied to construction of separate stratum fracturing and separate stratum testing for immobile pipe columns of oil-gas fields. The lower end of an oil pipe is connected with a first hydraulic anchor; the lower end of the first hydraulic anchor is connected with an upper packer; the depth position of the upper packer is positioned above an upper reservoir stratum; the lower end of the upper packer is connected with a second hydraulic anchor through an oil pipe; the lower end of the second hydraulic anchor is connected with a test working barrel; a sandblasting slide sleeve is connected to a lower part of the test working barrel; a lower packer is connected to a lower part of the sandblasting slide sleeve; the depth position of the lower packer is positioned between the upper reservoir stratum and a lower reservoir stratum; a setting ball base is connected to a lower part of the lower packer through an oil pipe; and the lower end of the setting ball base is connected with a ball-receiving basket. The gas well separate stratum fracturing and separate stratum testing integrated process pipe column has the effects of: capability of independently testing and measuring for production of two reservoir stratum sections and capability of carrying out accurate separate stratum testing and carrying out evaluation and analysis on a separate stratum reconstruction effect of each reservoir stratum section.
Description
Technical field
The utility model relates to oil gas field production gas technology field, and particularly two reservoir gas wells adopt the twin packer fixed tubular column to carry out separate stratum fracfturing and zonal testing construction, are the special-purpose integral process tubing strings in down-hole that uses in the construction.
Background technology
For the gas well that has two layers simultaneously,, to obtain the gas testing data of each layer simultaneously if will carry out the separate stratum fracfturing construction.What conventional construction was adopted is processes such as bridging plug, back-up sand, earlier following not portion's reservoir is carried out perforation exactly, and product is asked in discharge opeing after the pressure break; Adopt back-up sand then, beat liquid gum plug, method such as mechanical bridging plug is bottom reservoir shutoff; And then carry out top reservoir perforation, pressure break and discharge opeing and ask the product operation.Accomplish separate stratum fracfturing, the zonal testing of two reservoir sections, sand washing then towards plug, is salvaged or is bored and mill bridging plug, last combination producing.Said method can be implemented dividing potential drop to gas well and divide examination, but these technology long construction periods are bigger to reservoir damage, and work progress requires high to well control.
The utility model content
The purpose of the utility model is: a kind of gas well separate stratum fracfturing zonal testing integral process tubing string is provided, adopts the twin packer process pipe string to satisfy separate stratum fracfturing of natural gas well fixed tubular column and zonal testing.
The technical scheme that the utility model adopts is: gas well separate stratum fracfturing zonal testing integral process tubing string; Mainly form, it is characterized in that: be connected with one first hydraulic anchor in the lower end of oil pipe by oil pipe, first hydraulic anchor, upper packer, second hydraulic anchor, test job tube, sandblast sliding sleeve, lower packet, setting ball seat and the basket of receiving; Be connected with a upper packer in the lower end of first hydraulic anchor, the depth location of upper packer is on the reservoir of top; Lower end at upper packer connects one second hydraulic anchor through oil pipe; Be connected with a test job tube in the lower end of second hydraulic anchor; The bottom of test job tube connects a sandblast sliding sleeve; Bottom at the sandblast sliding sleeve connects a lower packet, and the depth location of lower packet is between top reservoir and bottom reservoir; Bottom at lower packet is connected with a setting ball seat through oil pipe; Lower end at setting ball seat connects the basket of receiving.
Summary gas well separate stratum fracfturing zonal testing integral process tubing string work progress.
(1) once penetrates out two reservoirs of gas well;
(2) in well, be lowered to separate stratum fracfturing and zonal testing integrated pipe column;
(3) separate stratum fracfturing
1. set packer: adopt well head to throw setting ball, the oil pipe pressurization sets mode, and the pressure that sets of packer is 25 ± 2MPa; Continue to improve pressure, shear setting ball seat.
2. pressure break lower floor: after setting ball seat is sheared, direct pressure break lower floor.
3. the pressure break upper strata, close lower packet backwash passage: throw the cover ball that skids; Oil pipe is sprained to press and is formed 5-8MPa pressure reduction, and opening sandblaster is upper strata pressure break passage, closes down the backwash switch of lower packet simultaneously; Steel ball continues descending shutoff lower floor, implements the upper strata fracturing work.
4. form the empty well tube: after two-layer pressure break finishes, throw and form empty well tube ball, oil pipe is sprained to press and is formed 5-8MPa pressure reduction, and pit shaft inner sliding sleeve fuse, steel ball are got in the basket of receiving.
(4) zonal testing
1. product is asked in lower floor test: utilize well testing truck pass through steel wire operation with lower floor's testing tool in prefabricated seating nipple, gas-bearing formation in the shutoff carries out lower floor's test and asks product.
2. product is asked in the upper strata test: lower floor's test trips out the upper strata testing tool through steel wire operation after asking and producing completion again, is lowered to lower floor's testing tool again; Shutoff lower floor carries out the test on upper strata and asks product, after the upper strata asks product to finish; Utilize well testing truck to fish for lower floor's testing tool, the gas well combination producing.
The beneficial effect of the utility model: the utility model gas well separate stratum fracfturing zonal testing integral process tubing string, can carry out independent test to two reservoir sections and ask product.Zonal testing and the separate zone stimulation effect of each reservoir section carried out evaluation analysis exactly.Adopted the packer and the hydraulic anchor that can bear high pressure, and packer has the well-flushing function, can remove sand plug by anti-circulant solution, guarantee the reliability of separate stratum fracfturing.Avoided repeatedly kill-job, sand washing, trip-out operation, reduced secondary pollution reservoir; Also reduce labour intensity, shortened the gas testing cycle.
Description of drawings
Fig. 1 is the utility model gas well separate stratum fracfturing zonal testing integral process tubular column structure sketch map.
Among the figure, 1-oil pipe, 2-sleeve pipe, 3-first hydraulic anchor, 4-upper packer, 5-second hydraulic anchor, 6-test job tube, 7-sandblast sliding sleeve, 8-lower packet, 9-setting ball seat, the 10-basket of receiving, 11-top reservoir, 12-bottom reservoir.
The specific embodiment
Embodiment 1: with a gas well separate stratum fracfturing zonal testing integral process tubing string is example, and the utility model is done further explain.
Consult Fig. 1.The utility model
The technical scheme that the utility model adopts is: gas well separate stratum fracfturing zonal testing integral process tubing string, mainly form by oil pipe 1, first hydraulic anchor 3, upper packer 4, second hydraulic anchor 5, test job tube 6, sandblast sliding sleeve 7, lower packet 8, setting ball seat 9 and the basket 10 of receiving.
Be connected with one first hydraulic anchor 3 in the lower end of oil pipe 1; Be connected with a upper packer 4 in the lower end of first hydraulic anchor 3, the depth location of upper packer 4 is on top reservoir 11; Lower end at upper packer 4 connects one second hydraulic anchor 5 through oil pipe; Be connected with a test job tube 6 in the lower end of second hydraulic anchor 5; The bottom of test job tube 6 connects a sandblast sliding sleeve 7; Bottom at sandblast sliding sleeve 7 connects a lower packet 8, and the depth location of lower packet 8 is between top reservoir 11 and bottom reservoir; Bottom at lower packet 8 is connected with a setting ball seat 9 through oil pipe; Lower end at setting ball seat 9 connects the basket 10 of receiving.The parts that the utility model uses are existing product.
Between the separate stratum fracfturing upper packer 4 and 8 of lower packets are being enclosed on sleeve pipe 2 inwalls.Two reservoirs are separated.Realize from lower to upper fracturing reform successively through the packing of packer and the unlatching of down-hole sandblast sliding sleeve 7, thereby realize the fixed tubular column separate stratum fracfturing.Realize zonal testing through pulling upper and lower part reservoir testing tool at last.
Claims (1)
1. gas well separate stratum fracfturing zonal testing integral process tubing string; Mainly form, it is characterized in that: be connected with one first hydraulic anchor (3) in the lower end of oil pipe (1) by oil pipe (1), first hydraulic anchor (3), upper packer (4), second hydraulic anchor (5), test job tube (6), sandblast sliding sleeve (7), lower packet (8), setting ball seat (9) and the basket of receiving (10); Be connected with a upper packer (4) in the lower end of first hydraulic anchor (3), the depth location of upper packer (4) is on top reservoir (11); Lower end at upper packer (4) connects one second hydraulic anchor (5) through oil pipe; Be connected with a test job tube (6) in the lower end of second hydraulic anchor (5); The bottom of test job tube (6) connects a sandblast sliding sleeve (7); Bottom at sandblast sliding sleeve (7) connects a lower packet (8), and the depth location of lower packet (8) is between top reservoir (11) and bottom reservoir; Bottom at lower packet (8) is connected with a setting ball seat (9) through oil pipe; Lower end at setting ball seat (9) connects the basket of receiving (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201516866U CN202108491U (en) | 2011-05-13 | 2011-05-13 | Gas well separate stratum fracturing and separate stratum testing integrated process pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201516866U CN202108491U (en) | 2011-05-13 | 2011-05-13 | Gas well separate stratum fracturing and separate stratum testing integrated process pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108491U true CN202108491U (en) | 2012-01-11 |
Family
ID=45433927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201516866U Expired - Lifetime CN202108491U (en) | 2011-05-13 | 2011-05-13 | Gas well separate stratum fracturing and separate stratum testing integrated process pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108491U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839920A (en) * | 2012-08-07 | 2012-12-26 | 中国石油化工股份有限公司 | Multi-segment transforming tubular column for horizontal well and use method for same |
| CN108868734A (en) * | 2018-04-24 | 2018-11-23 | 中国石油天然气股份有限公司 | Gas well solvable packer multiple fracturing completion integral partial pressure tubular column and method |
-
2011
- 2011-05-13 CN CN2011201516866U patent/CN202108491U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839920A (en) * | 2012-08-07 | 2012-12-26 | 中国石油化工股份有限公司 | Multi-segment transforming tubular column for horizontal well and use method for same |
| CN102839920B (en) * | 2012-08-07 | 2015-04-22 | 中国石油化工股份有限公司 | Multi-segment transforming tubular column for horizontal well and use method for same |
| CN108868734A (en) * | 2018-04-24 | 2018-11-23 | 中国石油天然气股份有限公司 | Gas well solvable packer multiple fracturing completion integral partial pressure tubular column and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105507865B (en) | The method of refracturing for oil gas water well | |
| CN104929603B (en) | Sleeve pipe infinite stages staged fracturing method | |
| CN202108493U (en) | Water jetting multi-cluster subsection fracturing strings of horizontal well | |
| CN104948145B (en) | A kind of oilfield horizontal well cased hole gravel packing construction method | |
| CN201212387Y (en) | Gas injection, gas production and brine discharge integration process pipe column for underground gas storage | |
| CN111119826B (en) | Coiled tubing staged fracturing string and string fracturing method | |
| CN202882862U (en) | Underground sand prevention tubular column capable of enabling well backwashing and sand washing and high-pressure gravel packing to be achieved | |
| CN110397428A (en) | A kind of gas displacing coal-bed method for increasing of straight well and U-shaped butt shaft unitized production coal bed gas | |
| CN100395428C (en) | Cracking four-linking technology | |
| CN102562019A (en) | Sand jet perforation annular mechanical packing multilayer fracturing tool pipe column and modification process | |
| CN204267005U (en) | A kind of multi-functional tubing string realizing separate layer acid treatment, seperated layer water injection | |
| CN102852509A (en) | Method for facture of coal bed methane reservoir of high-level coal | |
| CN202108491U (en) | Gas well separate stratum fracturing and separate stratum testing integrated process pipe column | |
| CN201386510Y (en) | Hydraumatic self- sealed self-locking window-opening integrated whipstock | |
| CN1752404A (en) | Gas well separate layer fracturing and producing integrated well completing pipe string and technique | |
| CN201031679Y (en) | Deep layer gas well multiple fracturing tools string | |
| CN202000977U (en) | Sandblast perforating fracturing machine | |
| CN201650254U (en) | Construction pipe string integrating fracturing and recovery of hydraulic pump | |
| CN201778771U (en) | Fixed tubular column hydraulic jetting layer separating and fracturing integral tubular column | |
| CN201292843Y (en) | Dropping and fetching downhole pressure measuring unit | |
| CN203050623U (en) | Pressure balance check valve for coiled tubing separate-layer fracturing | |
| CN204186371U (en) | First section of perforated casing sliding sleeve staged fracturing tool tubing string | |
| CN103161438B (en) | Tubular column of perforation fracturing test system | |
| CN202250018U (en) | Underground separate-layer fracturing technical tubular column and drillable packer thereof | |
| CN201865652U (en) | Oil-gas deep well fracturing string |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |
|
| CX01 | Expiry of patent term |